yeast infections can be an indication of a diabetes, so I would suggest getting that checked.

Also, you may want to inquire about getting the infection cultured (the dr will take a tissue/sample of the infection, "grow" it in the lab, see what grows and determine what meds will "kill" the growth. This will also determine if it's a true yeast infection or some other type of condition (vaginosis, allergic type reaction, etc.)

I remember having horrible yeast infections while pregnant--and I was "just" pregnant. I can't imagine having that sort of discomfort on top of dealing w/ cancer treatments. Just thinking about a yeast infection makes me itch!

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Mental that one, I'm telling you. ---Ron Weasley, "Harry Potter and the Chamber of Secrets"